Nginx反向代理关于对后端服务器的配置。对于广大的网管员来说nginx反向代理是必修的一门课。下面我们就来看看有关的内容。有三个后端服务，一个为web内容服务，一个是论坛服务，一个为文件服务。
当一个请求来时，nginx代理服务器其查看url把请求定向到相应的服务器，这个配置也缓冲文件服务的内容，但是论坛的和数据下载的内容就不缓存了，这个配置也使用了压缩，更好的节省内存
- #######################################################
- ### Calomel.org /etc/nginx.conf BEGIN
- #######################################################
- pid /var/run/nginx.pid;
- user nginx nginx;
- worker_processes 10;
- events {
- worker_connections 1024;
- }
- http {
- ## MIME types
- #include /etc/nginx_mime.types;
- default_type application/octet-stream;
- ## Size Limits
- client_body_buffer_size 128K;
- client_header_buffer_size 128K;
- client_max_body_size 1M;
- large_client_header_buffers 1 1k;
- ## Timeouts
- client_body_timeout 60;
- client_header_timeout 60;
- expires 24h;
- keepalive_timeout 60 60;
- send_timeout 60;
- ## General Options
- ignore_invalid_headers on;
- keepalive_requests 100;
- limit_zone gulag $binary_remote_addr 5m;
- recursive_error_pages on;
- sendfile on;
- server_name_in_redirect off;
- server_tokens off;
- ## TCP options
- tcp_nodelay on;
- tcp_nopush on;
- ## Compression
- gzip on;
- gzip_buffers 16 8k;
- gzip_comp_level 6;
- gzip_http_version 1.0;
- gzip_min_length 0;
- gzip_types text/plain text/css image/x-icon application/x-perl
application/x-httpd-cgi;- gzip_vary on;
- ## Log Format
- log_format main '$remote_addr $host $remote_user [$time_local]
"$request" '- '$status $body_bytes_sent "$http_referer" "$http_user_agent" '
- '"$gzip_ratio"';
- ## Proxy options
- proxy_buffering on;
- proxy_cache_min_uses 3;
- proxy_cache_path /usr/local/nginx/proxy_temp/ levels=1:2
keys_zone=cache:10m inactive=10m max_size=1000M;- proxy_cache_valid any 10m;
- proxy_ignore_client_abort off;
- proxy_intercept_errors on;
- proxy_next_upstream error timeout invalid_header;
- proxy_redirect off;
- proxy_set_header X-Forwarded-For $remote_addr;
- proxy_connect_timeout 60;
- proxy_send_timeout 60;
- proxy_read_timeout 60;
- ## Backend servers (web1 is the primary and web2 will
come up if web1 is down)- upstream webbackend {
- server web1.domain.lan weight=10 max_fails=3 fail_timeout=30s;
- server web2.domain.lan weight=1 backup;
- }
- server {
- access_log /var/log/nginx/access.log main;
- error_log /var/log/nginx/error.log;
- index index.html;
- limit_conn gulag 50;
- listen 127.0.0.1:80 default;
- root /usr/local/nginx/html;
- server_name _;
- ## Only requests to our Host are allowed
- if ($host !~ ^(mydomain.com|www.mydomain.com)$ ) {
- return 444;
- }
- ## Only allow these request methods
- if ($request_method !~ ^(GET|HEAD|POST)$ ) {
- return 444;
- }
- ## Only allow these file types to document root
- location / {
- if ($request_uri ~* (^\/|\.html|\.jpg|\.pl|\.png|\.css|\.
ico|robots\.txt)$ ) {- break;
- }
- return 444;
- }
- ## PROXY - Forum
- location /forum/ {
- proxy_pass http://forum.domain.lan/forum/;
- }
- ## PROXY - Data
- location /files/ {
- proxy_pass http://data.domain.lan/;
- }
- ## PROXY - Web
- location / {
- proxy_pass http://webbackend;
- proxy_cache cache;
- proxy_cache_valid 200 24h;
- proxy_cache_use_stale error timeout invalid_header updating
http_500 http_502 http_503 http_504;- proxy_ignore_headers Expires Cache-Control;
- }
- ## All other errors get the generic error page
- error_page 400 401 402 403 404 405 406 407 408 409 410 411
412 413 414 415 416 417- 500 501 502 503 504 505 506 507 /error_page.html;
- location /error_page.html {
- internal;
- }
- }
- }
- #
- #######################################################
- ### Calomel.org /etc/nginx.conf END
- #######################################################
Nginx反向代理的详细介绍，希望大家有所收获。
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